Unknown
In:
Geophys. Res. Lett., Kunming, China, Elsevier, vol. 27, no. 9, pp. 1323-1326, pp.
2481, (ISSN: 1340-4202)
Publication Date:
1999
Description:
Wu and Johnston use a spherical and self-gravitating viscoelastic earth
model to calculate the spatial and temporal evolution of glacially induced lithospheric
stress and fault stability in North America. They find that deglaciation is able to set
off paleo-earthquakes at sites within the former ice margin (Charlevoix, Quebec) and
outside it (Wabash Valley, Indiana). Rebound stress is found to diminish away from the
former ice margin. Comparing results from this model with those from a flat-earth model,
the authors find that the latter model over-predicts the magnitude of fault stability.
The onset time of paleo-earthquakes, however, is not significantly different between the
two models.
Keywords:
EQDEF
;
Earthquake precursor: prediction research
;
Gravimetry, Gravitation
;
Crustal deformation (cf. Earthquake precursor: deformation or strain)
;
7230
;
8107
;
8162
;
1864
;
GRL
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